neos-5260764-orauea

decomposition variable_bound set_partitioning cardinality binpacking knapsack mixed_binary

Submitter	Variables	Constraints	Density	Status	Group	Objective	MPS File
Hans Mittelmann	12940	12304	5.18925e-04	hard	neos-pseudoapplication-102	82593.16768840607	neos-5260764-orauea.mps.gz

Seem to be VRP output from 2-hour runs of Gurobi on 12 threads is included

Location of instance in collection

Instance Statistics

Detailed explanation of the following tables can be found here.

Size Related Properties
	Original	Presolved
Variables	12940	12240
Constraints	12304	11964
Binaries	12580	11900
Integers	0	0
Continuous	360	340
Implicit Integers	0	0
Fixed Variables	0	0
Nonzero Density	0.000518925	0.000554905
Nonzeroes	82620	81260

Constraint Classification Properties
	Original	Presolved
Total	12304	11964
Empty	0	0
Free	0	0
Singleton	0	0
Aggregations	0	0
Precedence	0	0
Variable Bound	0	340
Set Partitioning	54	54
Set Packing	0	0
Set Covering	0	0
Cardinality	340	340
Invariant Knapsack	0	0
Equation Knapsack	0	0
Bin Packing	5	5
Knapsack	5	5
Integer Knapsack	0	0
Mixed Binary	11900	11220
General Linear	0	0
Indicator	0	0

Structure

Available nonzero structure and decomposition information. Further information can be found here.

Nonzero entries of original problem

Nonzero entries after trivial presolving

Decomposed structure of original problem (dec-file)

Decomposed structure after trivial presolving (dec-file)

	value	min	median	mean	max
Components	1.041393
Constraint %		9.97158	9.97158	9.97158	9.97158
Variable %		9.99184	9.99184	9.99184	9.99184
Score	0.897524

Best Known Solution(s)

Find solutions below. Download the archive containing all solutions from the Download page.

## Warning in lapply(df["exactobjval"], as.numeric): NAs introduced by coercion

ID	Objective	Exact	Int. Viol	Cons. Viol	Submitter	Date	Description
4	82593.18	82593.18	0e+00	0e+00	Gerald Gamrath	2023-03-28	Found with COPT 6.5 in 7h on an AMD Ryzen 5900X with 12 Threads.
3	82593.17	82593.18	5e-07	5e-07	Michael Winkler	2022-11-03	Found with Gurobi 9.5.1 on an AMD EPYC 7313P (16 Cores) with 256GB RAM in 2 days.
2	82593.18		0e+00	0e+00	Robert Ashford and Alkis Vazacopoulus	2019-12-18	Found using ODH\|CPlex
1	83499.47	83499.47	0e+00	0e+00	-	2018-10-12	Solution found during MIPLIB2017 problem selection.

Similar instances in collection

The following instances are most similar to neos-5260764-orauea in the collection. This similarity analysis is based on 100 scaled instance features describing properties of the variables, objective function, bounds, constraints, and right hand sides.

Instance	Status	Variables	Binaries	Integers	Continuous	Constraints	Nonz.	Submitter	Group	Objective	Tags
neos-5266653-tugela	open	23310	22662	0	648	23458	171534	Hans Mittelmann	neos-pseudoapplication-102	65505.2005752763*	decomposition precedence set_partitioning cardinality binpacking knapsack mixed_binary
neos-5261882-treska	hard	2900	2730	0	170	2971	19342	Hans Mittelmann	neos-pseudoapplication-102	51614.874	decomposition precedence set_partitioning cardinality binpacking knapsack mixed_binary
ns1905797	open	18192	17676	4	512	51884	239700	NEOS Server Submission	neos-pseudoapplication-102		no_solution aggregations precedence variable_bound set_partitioning cardinality mixed_binary general_linear
neos-1456979	easy	4605	4245	180	180	6770	36440	NEOS Server Submission	neos-pseudoapplication-102	176	benchmark decomposition benchmark_suitable variable_bound set_partitioning set_packing cardinality knapsack mixed_binary general_linear
neos-2294525-abba	easy	10842	10086	0	756	11122	80010	Jeff Linderoth	neos-pseudoapplication-46	321.1522319	decomposition precedence set_partitioning cardinality mixed_binary

Reference

No bibliographic information available